"Contoured for your hands, custom for your bike!" The Avon Custom Contour Anodized Spike grips just feel right in your hands. Manufactured in the USA with Kraton rubber and featuring a very soft serrated texture to help hang on to your bike. Finished off with only the best - 6061 black anodized spike end caps and collars. Inside length = 5.500" OD = 1.460". Sold in pairs.